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<tr><th colspan='2'>src/&#8203;examples/&#8203;cpp03/&#8203;spawn/&#8203;parallel_grep.&#8203;cpp</th><th colspan='2'>src/&#8203;examples/&#8203;cpp11/&#8203;spawn/&#8203;parallel_grep.&#8203;cpp</th></tr>
<tr class="diffhunk"><td colspan="2">&#8942;</td><td colspan="2">&#8942;</td></tr><tr class="diffunmodified"><td class="diffline">1 </td><td class="diffpresent">/&#8203;/&#8203;</td><td class="diffline">1 </td><td class="diffpresent">/&#8203;/&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">2 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;parallel_grep.&#8203;cpp</td><td class="diffline">2 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;parallel_grep.&#8203;cpp</td></tr>
<tr class="diffunmodified"><td class="diffline">3 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;~~~~~~~~~~~~~~~~~</td><td class="diffline">3 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;~~~~~~~~~~~~~~~~~</td></tr>
<tr class="diffunmodified"><td class="diffline">4 </td><td class="diffpresent">/&#8203;/&#8203;</td><td class="diffline">4 </td><td class="diffpresent">/&#8203;/&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">5 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Copyright<span class="diffponct">&middot;</span>&#8203;(c)&#8203;<span class="diffponct">&middot;</span>&#8203;2003-&#8203;2018<span class="diffponct">&middot;</span>&#8203;Christopher<span class="diffponct">&middot;</span>&#8203;M.&#8203;<span class="diffponct">&middot;</span>&#8203;Kohlhoff<span class="diffponct">&middot;</span>&#8203;(chris<span class="diffponct">&middot;</span>&#8203;at<span class="diffponct">&middot;</span>&#8203;kohlhoff<span class="diffponct">&middot;</span>&#8203;dot<span class="diffponct">&middot;</span>&#8203;com)&#8203;</td><td class="diffline">5 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Copyright<span class="diffponct">&middot;</span>&#8203;(c)&#8203;<span class="diffponct">&middot;</span>&#8203;2003-&#8203;2018<span class="diffponct">&middot;</span>&#8203;Christopher<span class="diffponct">&middot;</span>&#8203;M.&#8203;<span class="diffponct">&middot;</span>&#8203;Kohlhoff<span class="diffponct">&middot;</span>&#8203;(chris<span class="diffponct">&middot;</span>&#8203;at<span class="diffponct">&middot;</span>&#8203;kohlhoff<span class="diffponct">&middot;</span>&#8203;dot<span class="diffponct">&middot;</span>&#8203;com)&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">6 </td><td class="diffpresent">/&#8203;/&#8203;</td><td class="diffline">6 </td><td class="diffpresent">/&#8203;/&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">7 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Distributed<span class="diffponct">&middot;</span>&#8203;under<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;Boost<span class="diffponct">&middot;</span>&#8203;Software<span class="diffponct">&middot;</span>&#8203;License,&#8203;<span class="diffponct">&middot;</span>&#8203;Version<span class="diffponct">&middot;</span>&#8203;1.&#8203;0.&#8203;<span class="diffponct">&middot;</span>&#8203;(See<span class="diffponct">&middot;</span>&#8203;accompanying</td><td class="diffline">7 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Distributed<span class="diffponct">&middot;</span>&#8203;under<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;Boost<span class="diffponct">&middot;</span>&#8203;Software<span class="diffponct">&middot;</span>&#8203;License,&#8203;<span class="diffponct">&middot;</span>&#8203;Version<span class="diffponct">&middot;</span>&#8203;1.&#8203;0.&#8203;<span class="diffponct">&middot;</span>&#8203;(See<span class="diffponct">&middot;</span>&#8203;accompanying</td></tr>
<tr class="diffunmodified"><td class="diffline">8 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;file<span class="diffponct">&middot;</span>&#8203;LICENSE_1_0.&#8203;txt<span class="diffponct">&middot;</span>&#8203;or<span class="diffponct">&middot;</span>&#8203;copy<span class="diffponct">&middot;</span>&#8203;at<span class="diffponct">&middot;</span>&#8203;http:&#8203;/&#8203;/&#8203;www.&#8203;boost.&#8203;org/&#8203;LICENSE_1_0.&#8203;txt)&#8203;</td><td class="diffline">8 </td><td class="diffpresent">/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;file<span class="diffponct">&middot;</span>&#8203;LICENSE_1_0.&#8203;txt<span class="diffponct">&middot;</span>&#8203;or<span class="diffponct">&middot;</span>&#8203;copy<span class="diffponct">&middot;</span>&#8203;at<span class="diffponct">&middot;</span>&#8203;http:&#8203;/&#8203;/&#8203;www.&#8203;boost.&#8203;org/&#8203;LICENSE_1_0.&#8203;txt)&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">9 </td><td class="diffpresent">/&#8203;/&#8203;</td><td class="diffline">9 </td><td class="diffpresent">/&#8203;/&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">10 </td><td class="diffpresent"></td><td class="diffline">10 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">11 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;dispatch.&#8203;hpp&gt;</td><td class="diffline">11 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;dispatch.&#8203;hpp&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">12 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;post.&#8203;hpp&gt;</td><td class="diffline">12 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;post.&#8203;hpp&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">13 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;spawn.&#8203;hpp&gt;</td><td class="diffline">13 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;spawn.&#8203;hpp&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">14 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;strand.&#8203;hpp&gt;</td><td class="diffline">14 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;strand.&#8203;hpp&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">15 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;thread_pool.&#8203;hpp&gt;</td><td class="diffline">15 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;asio/&#8203;thread_pool.&#8203;hpp&gt;</td></tr>
<tr class="diffdeleted"><td class="diffline">16 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;boost/&#8203;bind.&#8203;hpp&gt;</td><td colspan="2"></td></tr>
<tr class="diffunmodified"><td class="diffline">17 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;fstream&gt;</td><td class="diffline">16 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;fstream&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">18 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;iostream&gt;</td><td class="diffline">17 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;iostream&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">19 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;string&gt;</td><td class="diffline">18 </td><td class="diffpresent">#include<span class="diffponct">&middot;</span>&#8203;&lt;string&gt;</td></tr>
<tr class="diffunmodified"><td class="diffline">20 </td><td class="diffpresent"></td><td class="diffline">19 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">21 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;dispatch;&#8203;</td><td class="diffline">20 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;dispatch;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">22 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;spawn;&#8203;</td><td class="diffline">21 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;spawn;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">23 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;strand;&#8203;</td><td class="diffline">22 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;strand;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">24 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;thread_pool;&#8203;</td><td class="diffline">23 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;thread_pool;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">25 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;yield_context;&#8203;</td><td class="diffline">24 </td><td class="diffpresent">using<span class="diffponct">&middot;</span>&#8203;asio:&#8203;:&#8203;yield_context;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">26 </td><td class="diffpresent"></td><td class="diffline">25 </td><td class="diffpresent"></td></tr>
<tr class="diffdeleted"><td class="diffline">27 </td><td class="diffpresent">void<span class="diffponct">&middot;</span>&#8203;print_match(std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;input_file,&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;line)&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">28 </td><td class="diffpresent">{</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">29 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cout<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;input_file<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;':&#8203;'<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;line<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;endl;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">30 </td><td class="diffpresent">}</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">31 </td><td class="diffpresent"></td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">32 </td><td class="diffpresent">void<span class="diffponct">&middot;</span>&#8203;search_file(std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;search_string,&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;input_file,&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">33 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;strand&lt;thread_pool:&#8203;:&#8203;executor_type&gt;<span class="diffponct">&middot;</span>&#8203;output_strand,&#8203;<span class="diffponct">&middot;</span>&#8203;yield_context<span class="diffponct">&middot;</span>&#8203;yield)&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">34 </td><td class="diffpresent">{</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">35 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;ifstream<span class="diffponct">&middot;</span>&#8203;is(input_file.&#8203;c_str()&#8203;)&#8203;;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">36 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;line;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">37 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;size_t<span class="diffponct">&middot;</span>&#8203;line_num<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;0;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">38 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;while<span class="diffponct">&middot;</span>&#8203;(std:&#8203;:&#8203;getline(is,&#8203;<span class="diffponct">&middot;</span>&#8203;line)&#8203;)&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">39 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">40 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;If<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;find<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;match,&#8203;<span class="diffponct">&middot;</span>&#8203;send<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;message<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;output.&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">41 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(line.&#8203;find(search_string)&#8203;<span class="diffponct">&middot;</span>&#8203;!=<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string:&#8203;:&#8203;npos)&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">42 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">43 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;dispatch(output_stran&#8203;d,&#8203;<span class="diffponct">&middot;</span>&#8203;boost:&#8203;:&#8203;bind(&amp;print_match,&#8203;<span class="diffponct">&middot;</span>&#8203;input_file,&#8203;<span class="diffponct">&middot;</span>&#8203;line)&#8203;)&#8203;;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">44 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">45 </td><td class="diffpresent"></td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">46 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Every<span class="diffponct">&middot;</span>&#8203;so<span class="diffponct">&middot;</span>&#8203;often<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;yield<span class="diffponct">&middot;</span>&#8203;control<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;another<span class="diffponct">&middot;</span>&#8203;coroutine.&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">47 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(++line_num<span class="diffponct">&middot;</span>&#8203;%<span class="diffponct">&middot;</span>&#8203;10<span class="diffponct">&middot;</span>&#8203;==<span class="diffponct">&middot;</span>&#8203;0)&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">48 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;post(yield)&#8203;;&#8203;</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">49 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">50 </td><td class="diffpresent">}</td><td colspan="2"></td></tr>
<tr class="diffdeleted"><td class="diffline">51 </td><td class="diffpresent"></td><td colspan="2"></td></tr>
<tr class="diffunmodified"><td class="diffline">52 </td><td class="diffpresent">int<span class="diffponct">&middot;</span>&#8203;main(int<span class="diffponct">&middot;</span>&#8203;argc,&#8203;<span class="diffponct">&middot;</span>&#8203;char*<span class="diffponct">&middot;</span>&#8203;argv[])&#8203;</td><td class="diffline">26 </td><td class="diffpresent">int<span class="diffponct">&middot;</span>&#8203;main(int<span class="diffponct">&middot;</span>&#8203;argc,&#8203;<span class="diffponct">&middot;</span>&#8203;char*<span class="diffponct">&middot;</span>&#8203;argv[])&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">53 </td><td class="diffpresent">{</td><td class="diffline">27 </td><td class="diffpresent">{</td></tr>
<tr class="diffunmodified"><td class="diffline">54 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;try</td><td class="diffline">28 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;try</td></tr>
<tr class="diffunmodified"><td class="diffline">55 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td class="diffline">29 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffunmodified"><td class="diffline">56 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(argc<span class="diffponct">&middot;</span>&#8203;&lt;<span class="diffponct">&middot;</span>&#8203;2)&#8203;</td><td class="diffline">30 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(argc<span class="diffponct">&middot;</span>&#8203;&lt;<span class="diffponct">&middot;</span>&#8203;2)&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">57 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td class="diffline">31 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffunmodified"><td class="diffline">58 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cerr<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;Usage:&#8203;<span class="diffponct">&middot;</span>&#8203;parallel_grep<span class="diffponct">&middot;</span>&#8203;&lt;string&gt;<span class="diffponct">&middot;</span>&#8203;&lt;files.&#8203;.&#8203;.&#8203;&gt;\n&quot;;&#8203;</td><td class="diffline">32 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cerr<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;Usage:&#8203;<span class="diffponct">&middot;</span>&#8203;parallel_grep<span class="diffponct">&middot;</span>&#8203;&lt;string&gt;<span class="diffponct">&middot;</span>&#8203;&lt;files.&#8203;.&#8203;.&#8203;&gt;\n&quot;;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">59 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;return<span class="diffponct">&middot;</span>&#8203;1;&#8203;</td><td class="diffline">33 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;return<span class="diffponct">&middot;</span>&#8203;1;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">60 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td class="diffline">34 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffunmodified"><td class="diffline">61 </td><td class="diffpresent"></td><td class="diffline">35 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">62 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;We<span class="diffponct">&middot;</span>&#8203;use<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;fixed<span class="diffponct">&middot;</span>&#8203;size<span class="diffponct">&middot;</span>&#8203;pool<span class="diffponct">&middot;</span>&#8203;of<span class="diffponct">&middot;</span>&#8203;threads<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;reading<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;input<span class="diffponct">&middot;</span>&#8203;files.&#8203;<span class="diffponct">&middot;</span>&#8203;The</td><td class="diffline">36 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;We<span class="diffponct">&middot;</span>&#8203;use<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;fixed<span class="diffponct">&middot;</span>&#8203;size<span class="diffponct">&middot;</span>&#8203;pool<span class="diffponct">&middot;</span>&#8203;of<span class="diffponct">&middot;</span>&#8203;threads<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;reading<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;input<span class="diffponct">&middot;</span>&#8203;files.&#8203;<span class="diffponct">&middot;</span>&#8203;The</td></tr>
<tr class="diffunmodified"><td class="diffline">63 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;number<span class="diffponct">&middot;</span>&#8203;of<span class="diffponct">&middot;</span>&#8203;threads<span class="diffponct">&middot;</span>&#8203;is<span class="diffponct">&middot;</span>&#8203;automatically<span class="diffponct">&middot;</span>&#8203;determined<span class="diffponct">&middot;</span>&#8203;based<span class="diffponct">&middot;</span>&#8203;on<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;number<span class="diffponct">&middot;</span>&#8203;of</td><td class="diffline">37 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;number<span class="diffponct">&middot;</span>&#8203;of<span class="diffponct">&middot;</span>&#8203;threads<span class="diffponct">&middot;</span>&#8203;is<span class="diffponct">&middot;</span>&#8203;automatically<span class="diffponct">&middot;</span>&#8203;determined<span class="diffponct">&middot;</span>&#8203;based<span class="diffponct">&middot;</span>&#8203;on<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;number<span class="diffponct">&middot;</span>&#8203;of</td></tr>
<tr class="diffunmodified"><td class="diffline">64 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;CPUs<span class="diffponct">&middot;</span>&#8203;available<span class="diffponct">&middot;</span>&#8203;in<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;system.&#8203;</td><td class="diffline">38 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;CPUs<span class="diffponct">&middot;</span>&#8203;available<span class="diffponct">&middot;</span>&#8203;in<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;system.&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">65 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;thread_pool<span class="diffponct">&middot;</span>&#8203;pool;&#8203;</td><td class="diffline">39 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;thread_pool<span class="diffponct">&middot;</span>&#8203;pool;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">66 </td><td class="diffpresent"></td><td class="diffline">40 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">67 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;To<span class="diffponct">&middot;</span>&#8203;prevent<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;output<span class="diffponct">&middot;</span>&#8203;from<span class="diffponct">&middot;</span>&#8203;being<span class="diffponct">&middot;</span>&#8203;garbled,&#8203;<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;use<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;strand<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;synchronise</td><td class="diffline">41 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;To<span class="diffponct">&middot;</span>&#8203;prevent<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;output<span class="diffponct">&middot;</span>&#8203;from<span class="diffponct">&middot;</span>&#8203;being<span class="diffponct">&middot;</span>&#8203;garbled,&#8203;<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;use<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;strand<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;synchronise</td></tr>
<tr class="diffunmodified"><td class="diffline">68 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;printing.&#8203;</td><td class="diffline">42 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;printing.&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">69 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;strand&lt;thread_pool:&#8203;:&#8203;executor_type&gt;<span class="diffponct">&middot;</span>&#8203;output_strand(pool.&#8203;get_executor()&#8203;)&#8203;;&#8203;</td><td class="diffline">43 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;strand&lt;thread_pool:&#8203;:&#8203;executor_type&gt;<span class="diffponct">&middot;</span>&#8203;output_strand(pool.&#8203;get_executor()&#8203;)&#8203;;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">70 </td><td class="diffpresent"></td><td class="diffline">44 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">71 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Spawn<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;new<span class="diffponct">&middot;</span>&#8203;coroutine<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;each<span class="diffponct">&middot;</span>&#8203;file<span class="diffponct">&middot;</span>&#8203;specified<span class="diffponct">&middot;</span>&#8203;on<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;command<span class="diffponct">&middot;</span>&#8203;line.&#8203;</td><td class="diffline">45 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Spawn<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;new<span class="diffponct">&middot;</span>&#8203;coroutine<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;each<span class="diffponct">&middot;</span>&#8203;file<span class="diffponct">&middot;</span>&#8203;specified<span class="diffponct">&middot;</span>&#8203;on<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;command<span class="diffponct">&middot;</span>&#8203;line.&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">72 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;search_string<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;argv[1];&#8203;</td><td class="diffline">46 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;search_string<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;argv[1];&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">73 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;(int<span class="diffponct">&middot;</span>&#8203;argn<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;2;&#8203;<span class="diffponct">&middot;</span>&#8203;argn<span class="diffponct">&middot;</span>&#8203;&lt;<span class="diffponct">&middot;</span>&#8203;argc;&#8203;<span class="diffponct">&middot;</span>&#8203;++argn)&#8203;</td><td class="diffline">47 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;(int<span class="diffponct">&middot;</span>&#8203;argn<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;2;&#8203;<span class="diffponct">&middot;</span>&#8203;argn<span class="diffponct">&middot;</span>&#8203;&lt;<span class="diffponct">&middot;</span>&#8203;argc;&#8203;<span class="diffponct">&middot;</span>&#8203;++argn)&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">74 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td class="diffline">48 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffunmodified"><td class="diffline">75 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;input_file<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;argv[argn];&#8203;</td><td class="diffline">49 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;input_file<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;argv[argn];&#8203;</td></tr>
<tr class="diffchanged"><td class="diffline">76 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;spawn(p<span class="diffchanged2">o</span><span class="diffchanged2">o</span><span class="diffchanged2">l</span><span class="diffchanged2">,&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2">b</span>oo<span class="diffchanged2">s</span><span class="diffchanged2">t</span><span class="diffchanged2">:&#8203;</span><span class="diffchanged2">:&#8203;</span><span class="diffchanged2">b</span><span class="diffchanged2">i</span><span class="diffchanged2">n</span><span class="diffchanged2">d</span><span class="diffchanged2">(</span><span class="diffchanged2">&amp;</span><span class="diffchanged2">s</span><span class="diffchanged2">e</span><span class="diffchanged2">a</span><span class="diffchanged2">r</span><span class="diffchanged2">c</span><span class="diffchanged2">h</span><span class="diffchanged2">_</span><span class="diffchanged2">f</span><span class="diffchanged2">i</span>l<span class="diffchanged2">e</span>,&#8203;</td><td class="diffline">50 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;spawn(pool,&#8203;</td></tr>
<tr class="diffchanged"><td class="diffline">77 </td><td class="diffpresent"><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffchanged2">s</span><span class="diffchanged2">e</span><span class="diffchanged2">a</span><span class="diffchanged2">r</span><span class="diffchanged2">c</span><span class="diffchanged2">h</span><span class="diffchanged2">_</span><span class="diffchanged2">s</span><span class="diffchanged2">t</span><span class="diffchanged2">r</span><span class="diffchanged2">i</span><span class="diffchanged2">n</span><span class="diffchanged2">g</span><span class="diffchanged2">,&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span>i<span class="diffchanged2">n</span><span class="diffchanged2">p</span><span class="diffchanged2">u</span><span class="diffchanged2">t</span><span class="diffchanged2">_</span><span class="diffchanged2">f</span><span class="diffchanged2">i</span>l<span class="diffchanged2">e</span><span class="diffchanged2">,&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span>o<span class="diffchanged2">u</span>t<span class="diffchanged2">p</span><span class="diffchanged2">u</span>t<span class="diffchanged2">_</span><span class="diffchanged2">s</span><span class="diffchanged2">t</span><span class="diffchanged2">r</span><span class="diffchanged2">a</span><span class="diffchanged2">n</span>d<span class="diffchanged2">,&#8203;</span><span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2">_</span><span class="diffchanged2">1</span><span class="diffchanged2">)&#8203;</span>)&#8203;<span class="diffchanged2">;&#8203;</span></td><td class="diffline">51 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffchanged2">[</span><span class="diffchanged2">=</span><span class="diffchanged2">]</span><span class="diffchanged2">(</span><span class="diffchanged2">y</span>i<span class="diffchanged2">e</span>l<span class="diffchanged2">d</span><span class="diffchanged2">_</span><span class="diffchanged2">c</span>o<span class="diffchanged2">n</span>t<span class="diffchanged2">e</span><span class="diffchanged2">x</span>t<span class="diffchanged2"><span class="diffponct">&middot;</span>&#8203;</span><span class="diffchanged2">y</span><span class="diffchanged2">i</span><span class="diffchanged2">e</span><span class="diffchanged2">l</span>d)&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">52 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">53 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;ifstream<span class="diffponct">&middot;</span>&#8203;is(input_file.&#8203;c_str()&#8203;)&#8203;;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">54 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string<span class="diffponct">&middot;</span>&#8203;line;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">55 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;size_t<span class="diffponct">&middot;</span>&#8203;line_num<span class="diffponct">&middot;</span>&#8203;=<span class="diffponct">&middot;</span>&#8203;0;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">56 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;while<span class="diffponct">&middot;</span>&#8203;(std:&#8203;:&#8203;getline(is,&#8203;<span class="diffponct">&middot;</span>&#8203;line)&#8203;)&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">57 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">58 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;If<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;find<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;match,&#8203;<span class="diffponct">&middot;</span>&#8203;send<span class="diffponct">&middot;</span>&#8203;a<span class="diffponct">&middot;</span>&#8203;message<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;output.&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">59 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(line.&#8203;find(search_string)&#8203;<span class="diffponct">&middot;</span>&#8203;!=<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;string:&#8203;:&#8203;npos)&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">60 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">61 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;dispatch(output_stran&#8203;d,&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">62 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;[=]</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">63 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">64 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cout<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;input_file<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;':&#8203;'<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;line<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;endl;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">65 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;})&#8203;;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">66 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">67 </td><td class="diffpresent"></td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">68 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Every<span class="diffponct">&middot;</span>&#8203;so<span class="diffponct">&middot;</span>&#8203;often<span class="diffponct">&middot;</span>&#8203;we<span class="diffponct">&middot;</span>&#8203;yield<span class="diffponct">&middot;</span>&#8203;control<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;another<span class="diffponct">&middot;</span>&#8203;coroutine.&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">69 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;if<span class="diffponct">&middot;</span>&#8203;(++line_num<span class="diffponct">&middot;</span>&#8203;%<span class="diffponct">&middot;</span>&#8203;10<span class="diffponct">&middot;</span>&#8203;==<span class="diffponct">&middot;</span>&#8203;0)&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">70 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;post(yield)&#8203;;&#8203;</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">71 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffadded"><td colspan="2"> </td><td class="diffline">72 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;})&#8203;;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">78 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td class="diffline">73 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffunmodified"><td class="diffline">79 </td><td class="diffpresent"></td><td class="diffline">74 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">80 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Join<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;thread<span class="diffponct">&middot;</span>&#8203;pool<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;wait<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;all<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;spawned<span class="diffponct">&middot;</span>&#8203;tasks<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;complete.&#8203;</td><td class="diffline">75 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;/&#8203;/&#8203;<span class="diffponct">&middot;</span>&#8203;Join<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;thread<span class="diffponct">&middot;</span>&#8203;pool<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;wait<span class="diffponct">&middot;</span>&#8203;for<span class="diffponct">&middot;</span>&#8203;all<span class="diffponct">&middot;</span>&#8203;the<span class="diffponct">&middot;</span>&#8203;spawned<span class="diffponct">&middot;</span>&#8203;tasks<span class="diffponct">&middot;</span>&#8203;to<span class="diffponct">&middot;</span>&#8203;complete.&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">81 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;pool.&#8203;join()&#8203;;&#8203;</td><td class="diffline">76 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;pool.&#8203;join()&#8203;;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">82 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td class="diffline">77 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffunmodified"><td class="diffline">83 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;catch<span class="diffponct">&middot;</span>&#8203;(std:&#8203;:&#8203;exception&amp;<span class="diffponct">&middot;</span>&#8203;e)&#8203;</td><td class="diffline">78 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;catch<span class="diffponct">&middot;</span>&#8203;(std:&#8203;:&#8203;exception&amp;<span class="diffponct">&middot;</span>&#8203;e)&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">84 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td><td class="diffline">79 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;{</td></tr>
<tr class="diffunmodified"><td class="diffline">85 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cerr<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;Exception:&#8203;<span class="diffponct">&middot;</span>&#8203;&quot;<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;e.&#8203;what()&#8203;<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;\n&quot;;&#8203;</td><td class="diffline">80 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;std:&#8203;:&#8203;cerr<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;Exception:&#8203;<span class="diffponct">&middot;</span>&#8203;&quot;<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;e.&#8203;what()&#8203;<span class="diffponct">&middot;</span>&#8203;&lt;&lt;<span class="diffponct">&middot;</span>&#8203;&quot;\n&quot;;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">86 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td><td class="diffline">81 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;}</td></tr>
<tr class="diffunmodified"><td class="diffline">87 </td><td class="diffpresent"></td><td class="diffline">82 </td><td class="diffpresent"></td></tr>
<tr class="diffunmodified"><td class="diffline">88 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;return<span class="diffponct">&middot;</span>&#8203;0;&#8203;</td><td class="diffline">83 </td><td class="diffpresent"><span class="diffponct">&middot;</span>&#8203;<span class="diffponct">&middot;</span>&#8203;return<span class="diffponct">&middot;</span>&#8203;0;&#8203;</td></tr>
<tr class="diffunmodified"><td class="diffline">89 </td><td class="diffpresent">}</td><td class="diffline">84 </td><td class="diffpresent">}</td></tr>

</table>

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